package com.lack006.hosts_l;

/*
 * Copyright (c) 2011 Adam Outler
 * Permission is hereby granted, free of charge, to any person obtaining a copy 
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights 
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
 * copies of the Software, and to permit persons to whom the Software is 
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in 
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * @author adam
 */
// define <output and input> to this abstract class
public class Shell {

    // for internal access
    public Shell() {
    }

    // for external access

    public String sendShellCommand(String[] cmd) {
        System.out.println("\n###executing: " + cmd[0] + "###");
        String AllText = "";
        try {
            String line;
            Process process = new ProcessBuilder(cmd).start();
            BufferedReader STDOUT = new BufferedReader(new InputStreamReader(
                    process.getInputStream()));
            BufferedReader STDERR = new BufferedReader(new InputStreamReader(
                    process.getErrorStream()));
            try {
                process.waitFor();
            } catch (InterruptedException ex) {
                Logger.getLogger(Shell.class.getName()).log(Level.SEVERE, null,
                        ex);
            }
            while ((line = STDERR.readLine()) != null) {
                AllText = AllText + "\n" + line;
            }
            while ((line = STDOUT.readLine()) != null) {
                AllText = AllText + "\n" + line;
                while ((line = STDERR.readLine()) != null) {
                    AllText = AllText + "\n" + line;
                }
            }
            // log.level0(cmd[0]+"\":"+AllText);
            return AllText;
        } catch (IOException ex) {
            System.out
                    .println("Problem while executing in Shell.sendShellCommand() Received "
                            + AllText);
            return "CritERROR!!!";
        }

    }

}
